Ventilator.



E. L. YOUNGS.

vENTILAToR.

APPLICATION FILED FEB. I. IBI5.

Patented July 25, 1916.

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VENTILATOR. APPLICATION FILED FEB. I. I9I5.

Patented July 25, 1916.

IIII I I. l.. IIII II I .HVIIIIIIUPJYIIIINI WITPIEsEs WJTTORHEY EDWARD L. YOUNGS, OF DETROIT, MICHIGAN.

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Specification of Letters Patent.

Patented July 25, 1916..

Application led February 1, 1915. Serial No. 5,338.

To all whom t may concern:

Be it known that I, EDWARD L. YoUNGs, citizen of the United States, residing at Detroit, county of Vayne, State of Michigan, have invented a certain new and useful Improvement in Ventilatore, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to ventilators and has for its object an improved and cheaper form of ventilator construction, as will more fully appear in the description following.

In the drawings, Figure l is a front elevation. Fig. 2 is a top plan View, partly in section. Fig. 3 is a vertical section showing the ventilator attached in place. Fig. 4. is an end view. Fig. 5 is a front elevation showing the ventilator in place, the view being taken from the inside of a room.

The window frame is designated a, the sash The sash is intended to engage with the ventilator to hold it in place by the bottom rail of the sash resting on the inside rail of the ventilator, as shown in Fig. 3. A strip of felt or other soft material m is used to make a better joint between the sash and the ventilator.

The ventilator is built up on a frame c provided with a pair of rails (Z attached to the rear thereof. The frame 0 is a rectangular frame as shown in Fig. 1 by the dotted lines. It has a pair of cross members From each cross member a to the end bar of the frame c runs a plate e. (See Fig. 2). Similarly on the back, plates 7 run from the end vertical bar of the frame to the cross bar z, and these are continued to form deilectors g in the path of the incoming current from the two ends of the air boX. The air box is formed by a single piece of metal, preferably tin, which is bent as shown in Fig. 2, to form the enlarged portion it at each end. These will be called the end tubes because they are similar' to tubes in shape. At the middle, the metal sheet is looped into a U to form a middle tube z'. Each one of these tubes is open at both ends as indicated in Fig 3, and consequently in stormy weather the air blows completely through the tubes and they do not iform pockets adapted to catch a draft and deliver it into the room. The rails a?, Z being an upper rail and a lower rail, are secured to the rear of upper and lower' bars of the frame c. Between these rails and the bars of the frame and secured to the back of the cross members .e is the screen j.'

Strips 7a are secured to the top and face of the upper bar oi the trame c and to the face of the lower bar of the frame c. These strips 7u hold the lielt strip a?, a felt strip belng also used between the ventilator and window sill. These strips 7o are turned over to form a. groove or guide Z for the four slides that are employed. The outer pair of slides m are for the purpose of adjusting the ventilator for different widths oi' windows.

VThe inner pair of slides n are for the puryare turned over at the ends to engage against the sides of the window frame. Each of the slides mi, n is provided with a turned up lip 0 on its inner side for the purpose of grasping the slide to move it.

A thin metal sheet 1 is attached at its top to the rear of the upper rail (Z and at its bottom to the rear of the lower rail cl, and bowed in at its center to form a horizontal passage way p. This deiiccts the air coming through the center' tube z' toward each end of the ventilator and prevents its direct passage through the screen to produce drafts.

The ventilator is ordinarily placed between the sill of a window and the lower rail of the lower sash. Consequently it almost always acts as an inlet for the air from outside. Whether or not air comes in through the ventilator, oi course depends upon the condition of the air inside. As the heated air of the room rises, the cold air will come through the ventilator to take the place of the heated air. Occasionally when the condition of the air in the room is such as to not invite the admission of cold air, the ventilator will act both asan inlet and an eX- haust, that is to say, some air will come in say through the end tubes and will escape through the center tube, or the air may come through the center tube and escape through the end tubes. Almost always, however, the ventilator acts as an intake for cold air and the heated air of the room escapes through some other outlet. It is in this capacity as an inlet that the vertical tubes open at each end in conjunction with the openings in the sides of the tube into the room are important, for it is 'also avery effective indirect system of ventilation, that is to say, the air currents donot come into the room With such force as to create objectionable drafts. This function is accomplished by reason of having the vertical tubes open at each end so that they do not pocket the air. Consequently the portion of the air that entersV the vertical tubes escapes .through the opposite end and is not forcibly driven intothe room to the discomfort of the occupants.

What I claim is:

1. In a ventilator, the combination of a frame7 structure carried by said frame for obstructing part of the opening through the frame, a pair ofpturned-over strips attached to the face of the frame, and apair of slides guided by the said turned-over strips, one

slide serving to fit the ventilator to di'erent Y 4sized Windows and the other slide serving as a valve to regulate. the opening through the ventilator. i

2. In a ventilator, the combination of a frame, and structure carried by said frame for obstructing the opening through said frame including a sheet of metal formed into a vertical tube open at the top and botvof the said communicating passage-Way leading into the room for causing the air to travel in a path substantially parallel with the ventilator. n

4. In a ventilator, the combination of a frame, structure carried by said frame for obstructing the opening through said frame Copies of this patent may be obtained for ve cents each, by addressing` the Commissioner of Patents,

provided With tWo tube-like vertical air passages open at both ends and communicating With the inside of the room through one side, a deflector carried by the frame and bowed out over the passage-Way leading into the room from one intake, the said deflector being open at the side tovvard the other tube, and a second deflector carried by the frame and interposedl obliquely across the passage- Way leading from theiother tube and also being arranged to direct air ,currents in substantially the same path that the first mentioned deflector directs airk currents.

5. .In a ventilator, the combination of a frame,'structure carried by said frame for obstructing the opening through rthe frame and including tWo vertical tubeslopen at Vboth ends and located at opposite ends of the frame, each of said tubes communicating through one side With the interior of the room, the said structure also formed at the center into a third vertical tube to open at both ends and communicating through one side with the interior of the room, a deflector carried by the frame and located in' front of the passage-Way leading from the said third tube and open at both sides to direct currents in paths substantially parallel with the ventilator, and a pair of deflectors, one for each end tube carried by the frame and located in front of the passage-Ways leading into the room from said end tubes and arranged to direct air currents in paths substantially parallel With the ventilator frame and substantially coinciding with the paths that the rst mentioned defector directs the air currents.

'In testimony whereof, I sign this specification in thepresence of tvvo Witnesses.

STUART C. BARNES VIRGINIA C. SPRATT.

Washington, D. C. 

